Olopatadine Impurity N2 CAS 1206456-44-1
| CAS No. | 1206456-44-1 |
| Molecular Formula | C24H29NO3 |
| Molecular Weight | 379.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Olopatadine Impurity N2 (CAS 1206456-44-1), a pharmacopoeial impurity reference standard (molecular formula C24H29NO3, MW 379.49 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Olopatadine Impurity N2 (C24H29NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 379.49 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Olopatadine Impurity N2 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H29NO3 |
| Molecular Weight | 379.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Olopatadine Standards
- Olopatadine Impurity 16 (CAS CATO-C4X-171816)
- Olopatadine lmpurity 62 (CAS CATO-C4X-171863)
- Olopatadine Ethyl Ester (HCl) (CAS 113806-03-4)
- Olopatadine lmpurity 60 (CAS CATO-C4X-171860)
- Olopatadine lmpurity 60 (CAS CATO-C4X-171861)
- Olopatadine Amide (CAS 872041-02-6)
- Olopatadine-d3 N-Oxide (CAS 1246832-94-9)
- Olopatadine Impurity 52 (CAS 949141-21-3)
Recommended Standards
- Nerandomilast impurity 24 (CAS CATO-C4X-347324)
- TODB (free base) (CAS 127544-88-1)
- Cefotaxime Impurity 52 (CAS 57254-16-7)
- 4-Methoxy-N,N-di-p-tolyl-[1,1-biphenyl]-4-amine (CAS 129119-41-1)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
- Nizatidine EP Impurity K (CAS 112233-23-5)
- Empagliflozin Impurity 271 (CAS CATO-C4X-1065271)
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- (2S)-3-(methylamino)propane-1,2-diol (CAS 847490-63-5)
- N-Trityl Candesartan Methyl Ester Methoxy Analogue (CAS 1797136-91-4)
- Bromoaceticanhydride (CAS 13094-51-4)
- 4-(Acryloyloxy)butyl 3-oxobutanoate (CAS 13025-07-5)
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Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com